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- Museum number:
- 1-53851
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- length 4.5 inches
- Collector:
- Ernest N. Johnson
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- September 19, 1939
- Museum number:
- 1-39414
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- length 17 centimeters
- Collector:
- Robert Fleming Heizer
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- October 1937
- Museum number:
- 1-53852
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- length 4.5 inches
- Collector:
- Ernest N. Johnson
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- September 19, 1939
- Museum number:
- 1-53845
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- length 6 inches
- Collector:
- Ernest N. Johnson
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- September 15, 1939
- Museum number:
- 1-39589
- Object class:
- Ground stone and Mortars (grinding tools)
- Collector:
- Robert Fleming Heizer
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- February 7, 1938
- Museum number:
- 1-39602
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- diameter 14 inches
- Collector:
- Robert Fleming Heizer
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- February 7, 1938
- Museum number:
- 1-39415
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- length 19 centimeters
- Collector:
- Robert Fleming Heizer
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- October 1937
- Museum number:
- 1-53842
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- length 10.5 inches
- Collector:
- Ernest N. Johnson
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- September 15, 1939
- Museum number:
- 1-39604
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- length 7 inches
- Collector:
- Robert Fleming Heizer
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- February 7, 1938
- Museum number:
- 1-39603
- Object class:
- Ground stone and Mortars (grinding tools)
- Dimensions:
- length 12 inches
- Collector:
- Robert Fleming Heizer
- Collection place:
- CA-CCo-250, Concord, Contra Costa County
- Collection date:
- February 7, 1938